Small-Molecule Inhibitors of the MDM2-p53 Protein−Protein Interaction Based on an Isoindolinone Scaffold
作者:Ian R. Hardcastle、Shafiq U. Ahmed、Helen Atkins、Gillian Farnie、Bernard T. Golding、Roger J. Griffin、Sabrina Guyenne、Claire Hutton、Per Källblad、Stuart J. Kemp、Martin S. Kitching、David R. Newell、Stefano Norbedo、Julian S. Northen、Rebecca J. Reid、K. Saravanan、Henriëtte M. G. Willems、John Lunec
DOI:10.1021/jm0601194
日期:2006.10.1
From a set of weakly potent lead compounds, using in silico screening and small library synthesis, a series of 2-alkyl-3-aryl-3-alkoxyisoindolinones has been identified as inhibitors of the MDM2-p53 interaction. Two of the most potent compounds, 2-benzyl-3-(4-chlorophenyl)-3-(3-hydroxypropoxy)-2,3-dihydroisoindol-1-one (76; IC50 = 15.9 +/- 0.8 mu M) and 3-(4-chlorophenyl)-3-(4-hydroxy-3,5-dimethoxybenzyloxy)-2-propyl-2,3-dihydroisoindol-1-one (79; IC50) 5.3 (0.9 mu M), induced p53-dependent gene transcription, in a dose-dependent manner, in the MDM2 amplified, SJSA human sarcoma cell line.